[Chris Baldwin]"The 1TB G-Raid will most likely be put on a shelf with the RAW files as the method of archiving."

I'd say that external raid-0 combination of disks is the most unreliable solution for archiving.
If one of those hard disks inside does not start after couple of years on the shelf, then all footage is lost.
Raid-0 is good for fast on-line editing, but even then I'd make a backup.